The purpose of the investigators study is to retrospectively evaluate the predictors of malignant thyroid nodules and established an useful scoring system based on sonographic findings and demographic data.

Patients with thyroid nodules which underwent head and neck ultrasound(US) examination and US-FNA cytology at Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan. No patient included in this series had a previous diagnosis of thyroid malignancy before US exam.

The investigators want to retrospectively review the medical records of nodules which underwent head and neck ultrasound(US) examination and US-FNA cytology from 2007 July to 2010 Dec at Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan. No patient included in this series had a previous diagnosis of thyroid malignancy.

Criteria

Inclusion Criteria:

nodules which underwent head and neck ultrasound(US) examination and US-FNA cytology from 2007 July to 2010 Dec at Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan.

Exclusion Criteria:

a previous diagnosis of thyroid malignancy before US exam

Contacts and Locations

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01307761